Explaining Universe on Instagram: "Our Solar System Today vs In 5 Billion Years 🌞→🔴 This visual comparison shows our solar system today versus its predicted state in 5 billion years, based on modern astrophysics and stellar evolution models. Right now, our Sun is a stable main-sequence star, providing steady energy that sustains life on Earth. But stars do not last forever. In roughly 5 billion years, the Sun will exhaust its core hydrogen fuel. When that happens, it will expand dramatically i